diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3947c982..ddf26b90 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,7 +19,7 @@ jobs:
     env:
       CXX: ${{ matrix.cxx }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Install
       run: |
         sudo apt-get update -y
@@ -57,7 +57,7 @@ jobs:
     env:
       CXX: ${{ matrix.cxx }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Before Install
       run: |
         echo "C:\msys64\mingw64\bin" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
@@ -90,7 +90,7 @@ jobs:
 
     runs-on: macos-13
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Install
       run: |
         brew install gcc@14